ABSOLUTLY Appalled

Starting on the 6th of Jan i have been having endless issues with my email address, unable to send emails at all from outlook, but could send from my webmail, called the help desk held on for 2,5 hrs just to be told they "reset" my mail account.......fast forward 2 days later the same issue and the called them again and another 2.5hrs all while trying to pack for my trip overseas. was told they would log a call to escalate the issue, still no issue resolved. Whilst on my trip i had to use the webmail option to send all my mails, but 90% of my mails were not being delivered to my clients "Warning: message 1vcoNA-0008YL-52 delayed x amount of hours", asked my IT to call them and he held on for 2hrs and the told him that they reset the mail account as well and the isuue was now resolved, GUESS WHAT...... still not resolved, cam back from overseas and still having issues with my mail account. The 2nd mailbox on my webmail exchange was working 100% all the till till this morning, no email sent or received, called for another 3 hrs on the phone...... as per their instructions changed he email password and now ZERO emails at all, unable to access my webmail "unknown username or password". been trying to get hold of support between 10.00 - 12.30 via the CHAT option, had to leave, closed the chat came back at 17.00 and till now 18.35 still ZERO response from the CHAT agent.... Utterly appalled with the service and losing money every day due to these issues, will be looking into moving my exchange to an alternate provider ASAP.